The Zoologist — January, 1873. 3377 



their elytra. Two of tlie beetles outlived a week, the males generally dying 

 after having copulated once : the females seemed to be longer lived ; one 

 marked female remained in full vigour for ten days. Their ' frass ' consisted 

 of isolated brown snuff-like grains." 



The Eev. R. P. Murray comnunicated the following notes : — 



" On some Variations of Neuration observed in certain PajxilionidcB. 



" I beg to lay before the Society a few cases of aberrant neuration which 

 I have lately observed in certain insects in my collection. They occur in 

 four genera, viz., Papilio, Parnassius, Thais, and Synchloe (Butler). 



1°. Papilio Cloauthus. In all the specimens I possess (three) I find that 

 the first subcostal nervure anastomoses with the costal nerve. This is also 

 the case in 2^, Synchloe Meseutina, these insects thus resembling in this 

 respect the genus Leptalis. 



3° and 4°. Parnassius Apollo and Delias. I possess specimens of both 

 these species in which the first and second subcostal nervures coalesce more 

 or less completely. Sometimes the junction is complete; in other cases 

 the veinlets again separate just before the end of the first subcostal. 



5°. P. Clodias. In the only specimen of this insect which I possess (a 

 female) there is, in the right-hand lower wing, a transverse nerve running 

 from the first subcostal near its extremity towards the second, which, how- 

 ever, is not quite reached, though both nervures are angulated and drawn 

 towards one another by the additional vein. 



6°. Thais Polyxena. In one of my specimens there is a distinct and 

 ■well-formed prediscoidal cell in the hind wings : in two other cases this cell 

 is faintly indicated. This would seem to be a case of reversion to a former 

 type, and to indicate that Thais is comparatively a modern genus. Its 

 nearest ally is of course Parnassius, but as it also seems to possess a true 

 affinity with Zegiis, and so with the Pierinae, we may perhaps conclude 

 that this last-named group is somewhat less ancient than the Papihouiuse. 

 Before concluding I may be allowed to remark on the affinity between the 

 genera Parnassius and Eurycus, as shown by the females of each being 

 provided with a horny pouch. I have nowhere seen it stated that this 

 appendage was formed by Eurycus, but the fact is probably well known." 



Mr. Dunning read a " Note on Atropos and Clothilla, with reference to 

 Mr. W. Arnold Lewis's strictures on Dr. Hagen." 



After quoting at length the passage from pp. 54, 55, of Mr. Lewis's 

 ' Discussion of the Law of Priority in Entomological Nomenclature, with 

 Strictures on its Modern Application,' in which Dr. Hagen is said to have 

 been guilty of "astonishing chicanery," and to have described in 1865 an 

 insect as having leather-like winglets, ■27-jointed antennae, and with legs not 

 thickened, which in 1861 he had described as having a bare back, ] 5-joiuted 

 antennae, and thickened thighs, Mr. Dunning proceeded as follows: — 



